Where was mahjong invented

this answer may be wrong but I think China.

Although the history of mahjong is contested, game experts generally agree that it evolved near Shanghai in the mid- or late-1800s. It quickly became popular in Shanghai and Beijing, and eventually among American expatriates.

Explanation:

answer: held for the purpose of bringing nazi war criminals to justice, the nuremberg trials were a series of 13 trials carried out in nuremberg, germany, between 1945 and 1949

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i also think it is c